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  • Mouse curser gets "weird" when I move it between different monitors

    - by Markus
    I'm using a Windows 7 64-bit machine with two monitors side by side. Sometimes when I have a fullsreen application running on my main monitor and I am moving the mouse curser between the two monitors, the curser gets corrupted. You cannot see that it is a curser anymore. To fix it I have to restart the computer. Has anyone heard about this problem before? How do I fix it without rebooting?

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  • Pointer to auto_ptr instead of a classical double pointer

    - by Pin
    Hello. I'm quite new to smart pointers and was trying to refactor some existing code to use auto_ptr. The question I have is about double pointers and their auto_ptr equivalent, if that makes sense. I have a function that accepts a double pointer as its parameter and the function allocates resources for it: void foo ( Image** img ) { ... *img = new Image(); ...} This function is then used like this: Image* img = NULL; foo ( &img ); ... delete img; I want to use auto_ptr to avoid having to call delete explicitly. Is the following correct? void foo ( auto_ptr<Image>* img ); and then auto_ptr<Image> img = NULL; foo ( &img ); Thanks.

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  • Pointer to struct, containing pointer to an object, for which I want to call a function

    - by user1795609
    So I've created an ADT which is a singly linked list made up of nodes. These Nodes each have a pointer to an object in them called data. Class Structure { struct Node { Object *data; Node *next; }; }; Node *head; I am trying to call a function in the object, like this: head = new Node; head -> data = new Object(); head -> next = NULL; cout << head -> data.print(); I keep getting the following error at compile. error: request for member 'print' in 'head-Structure::Node::data', which is of non-class type 'Object'*

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  • Right-button drag-drop function in Gnome

    - by HorusKol
    While I don't really miss the annoyances that go with working on Windows, one thing I do wish I had in Gnome is the ability to hold the right-mouse button down on a file and drag it to get the context menu asking if I want to move or copy the file. I realise the default tries to be sensible (like in Windows - defaults to move if on the same volume, or copy if on different) and that it can be overridden with <ctrl> or <shift> - but i'm still used to the right-mouse drag option and keep getting frustrated when it doesn't work...

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  • Basic Mouse Features in Silverlight

    - by Sayre Collado
    Hi Guys, I have basic sample on how to use some features of mouse events in Silverlight. The picture. The Mouse Activity Log is to record the all activity done on the projects. My simple snippets on how to add on the textbox is:         protected void MessageLog(string msg)         {             txtMouseLog.Text += msg;         }   For the Mouse Wheel sample this is the snippets:         private void chkMouseWheel_Checked(object sender, RoutedEventArgs e)         {             image1.MouseWheel += new MouseWheelEventHandler(image1_MouseWheel);         }           void image1_MouseWheel(object sender, MouseWheelEventArgs e)         {             ImgScale.ScaleX = e.Delta > 0 ? ImgScale.ScaleX * 1.5 : ImgScale.ScaleX * 0.8;             ImgScale.ScaleY = e.Delta > 0 ? ImgScale.ScaleY * 1.5 : ImgScale.ScaleY * 0.8;               e.Handled = true;         }    And the XAML:        <Image Height="139" Name="image1" Stretch="Fill" Width="178" Source="/GBLOgs1;component/Images/Sunset.jpg">            <Image.RenderTransform>                 <ScaleTransform x:Name="ImgScale"></ScaleTransform>            </Image.RenderTransform>        </Image     I have also the showing of mouse position:           private void Mouse_MouseMove(object sender, MouseEventArgs e)         {             Point point = e.GetPosition(this);             lblMouseLocation.Content = "X: " + point.X + "and Y: " + point.Y;         }           private void checkBox1_Checked(object sender, RoutedEventArgs e)         {             lblMouseLocation.Visibility = Visibility.Visible;             MessageLog("Mouse Location Visible\n");         }           private void checkBox1_Unchecked(object sender, RoutedEventArgs e)         {             lblMouseLocation.Visibility = Visibility.Collapsed;             MessageLog("Mouse Location Collapsed\n");            And even the counting of clicked event:           int clicked = 0;         private void LayoutRoot_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)         {             Point point = e.GetPosition(this);             clicked++;               string msg = "Mouse Clicked " + clicked.ToString() + " time(s) " +                                     "Mouse Location X and Y: " + point.X + " " + point.Y + "\n";               MessageLog(msg);         }     And now the result of above snippets. Happy Programming.

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  • Review: Logitech t620 Touch Mouse and Windows 8

    - by Tim Murphy
    It isn’t very often that I worry much about hardware, but since I heard some others talking about “touch” mice for their Windows 8 machines I figured I would try one out and see what the experience was.  The only Windows 8 compatible touch mouse that they had in the store was the Logitech t630 Touch Mouse.  At $69 it isn’t exactly a cheap purchase. So how does it work with Windows 8.  First it works well as a normal mouse with touch scroll capabilities.  Scrolling works both horizontally and vertically.  Then you get into to the Win8 features, all of which are associated with the back 2/3 of the mouse.  If you double-touch-tap (not depressing the internal button) it acts as a Windows home screen button.  The next feature is switching applications.  This is accomplished by dragging a finger from the left edge of the mouse in.  Bringing up the Windows 8 open apps list is the same movement as on the table where you drag in from the left and then move back to the right.  The last gesture available is to bring up the charms.  This is performed by dragging in from the right side of the mouse. There is a certain amount of configurability.  You can switch dominant hand configuration as well as turn on and off gestures as shown in the screenshot below. It is nice that they kept the gestures similar to the table gestures.  Hopefully future updates to the drivers will bring other gestures, but this is definitely a good start.  It would be interesting to also compare this to the Microsoft Touch Mouse and see if there are additional gestures such as app close and for the app bar. del.icio.us Tags: Logitech,Windows 8,Win8,t620,Logitech t620 Touch Mouse,Gesture

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  • Adobe AIR: touch screen doesn't trigger mouse down event correctly

    - by Saariko
    i have designed a gaming kiosk app in as3 i am using it on a Sony vaio l pc (like hp's touchsmarts) in windows 7 the app doesn't need any multi-touch gestures (only single touch clicks and drags) so i am using mouse events everything is fine (including mouse click and move events) except that a single touch to the screen (with no move) doesn't fire a mouse down. it is fired only after a small move of the finger outside the app, on my desktop, i see that the small windows 7 cursor jumps immediately to where a finger is placed, meaning this issue isn't a hardware or a windows problem but rather how internally the flash app receives "translated" touch-to-mouse events from the os. for example, in a windows Solitaire game, a simple touch to the screen immediately highlights the touched card. in my app, a button will change to the down state only if i touch it and also move my finger slightly (click events - down and up - are triggered fine) shouldn't the MOUSE_DOWN event trigger exactly like how a TOUCH_BEGIN would in the new touchevent class? any ideas?

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  • Detecting browser capabilities and selective events for mouse and touch

    - by skidding
    I started using touch events for a while now, but I just stumbled upon quite a problem. Until now, I checked if touch capabilities are supported, and applied selective events based on that. Like this: if(document.ontouchmove === undefined){ //apply mouse events }else{ //apply touch events } However, my scripts stopped working in Chrome5 (which is currently beta) on my computer. I researched it a bit, and as I expected, in Chrome5 (as opposed to older Chrome, Firefox, IE, etc.) document.ontouchmove is no longer undefined but null. At first I wanted to submit a bug report, but then I realized: There are devices that have both mouse and touch capabilities, so that might be natural, maybe Chrome now defines it because my OS might support both types of events. So the solutions seems easy: Apply BOTH event types. Right? Well the problem now take place on mobile. In order to be backward compatible and support scripts that only use mouse events, mobile browsers might try to fire them as well (on touch). So then with both mouse and touch events set, a certain handler might be called twice every time. What is the way to approach this? Is there a better way to check and apply selective events, or must I ignore the problems that might occur if browsers fire both touch and mouse events at times?

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  • Call a void* as a function without declaring a function pointer

    - by ToxIk
    I've searched but couldn't find any results (my terminology may be off) so forgive me if this has been asked before. I was wondering if there is an easy way to call a void* as a function in C without first declaring a function pointer and then assigning the function pointer the address; ie. assuming the function to be called is type void(void) void *ptr; ptr = <some address>; ((void*())ptr)(); /* call ptr as function here */ with the above code, I get error C2066: cast to function type is illegal in VC2008 If this is possible, how would the syntax differ for functions with return types and multiple parameters?

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  • Capture (trap) the mouse cursor in a window in Java

    - by typoknig
    Hi all, I am looking for a way to capture or trap the mouse in a window after it has entered that window much like a mouse is trapped in a virtual machine window until a user presses CTRL+ALT+DEL or release the mouse in some other manner. How do I make this happen in Java? Going full screen is not an option.

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  • Mouse for programmer

    - by aku
    We have discussed keyboards. But take a look at the small piece of plastic to the right (or left :) ) of your beloved keyboard! This humble creature helps you to draw nice forms, and click all around the web. A real programmers mouse must be precise and comfortable, so which mouse would you make a companion to your keyboard? Currently I'm in love with this fat member of mice family: Natural wireless laser mouse 6000

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  • Simulating a mouse button click in Windows

    - by Ncarlson
    Hi everyone, I'm writing Remote Desktop clone in C++ using QT. So far I'm able to move the mouse cursor around fine. QT has a nice setPos function for that. However, I'm a bit lost as to what API/Library to use for simulating mouse button clicks. One method I'm aware of is to send the WM_(event) to a window using the window's HWND. However, I was hoping there was a more salient method for taking complete control over a mouse. Is there any other way to tell the operating system that the left mouse button has been clicked? Thanks.

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  • Keyboard- and mouse-event transparent widget

    - by Gajender
    When i click a button my main window i want it to become transparent to keyboard and mouse events, i.e. all keyboard and mouse events should pass to any windows below it as if that window is not present there. "Qt::WA_TransparentForMouseEvents" does not work here as this only make child windows transparent to keyboard and mouse events i guess. And my window is main window and i want to pass all event to any window on desktop not just parent window.

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  • deviceID format for PS/2 mouse

    - by kingas
    I would like to know the DeviceID and PNPDeviceID format for PS/2 Mouse. On my system Device ID for PS/2 mouse is ACPI\PNP0F13\4&1F1D307&0. So is the format is ACPI\PNPxxxx{something} or some thing else? I mean is ACPI is mandatory for PS/2 mouse?

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  • pointer to const member function typedef

    - by oldcig
    I know it's possible to separate to create a pointer to member function like this struct K { void func() {} }; typedef void FuncType(); typedef FuncType K::* MemFuncType; MemFuncType pF = &K::func; Is there similar way to construct a pointer to a const function? I've tried adding const in various places with no success. I've played around with gcc some and if you do template deduction on something like template <typename Sig, typename Klass> void deduce(Sig Klass::*); It will show Sig with as a function signature with const just tacked on the end. If to do this in code it will complain that you can't have qualifiers on a function type. Seems like it should be possible somehow because the deduction works.

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  • Getting the right result of mouse click event

    - by Jessy
    Hello, I'm curious why I got the "right" BUT "wrong"number of result when I click the mouse. I supposed to print on the console mouseClicked once everytimes the mouse is clicked. However I got many of them printed out everytimes I clicked the mouse ...sometimes 5 e.g. mouseClicked mouseClicked mouseClicked mouseClicked mouseClicked Instead of just mouseClicked Why? public void mouseClicked(MouseEvent arg0) { System.out.println("mouseClicked"); }

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  • Accessing subclass members from a superclass pointer C++

    - by Dr. Monkey
    I have an array of custom class Student objects. CourseStudent and ResearchStudent both inherit from Student, and all the instances of Student are one or the other of these. I have a function to go through the array, determine the subtype of each Student, then call subtype-specific member functions on them. The problem is, because these functions are not overloaded, they are not found in Student, so the compiler kicks up a fuss. If I have a pointer to Student, is there a way to get a pointer to the subtype of that Student? Would I need to make some sort of fake cast here to get around the compile-time error?

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  • Determine Mouse Button Switch State

    - by VoiDeD
    Hello, I'm trying to determine the host operating system's settings regarding mouse button switch state to properly handle a context menu event. I want to determine whether or not the operating system my application is running on has switched the left and right mouse buttons, and handle the mouse click event accordingly. What would be the best way to determine that in C#? Thanks!

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  • Member Function Pointer not quite right

    - by BlackDuck
    I have a SpecialisedRedBlackTree class that is templated. My Month class is not. In my Month class I have a private member which is an instance of SpecialisedRedBlackTree: SpecialisedRedBlackTree<Day> m_windSpeedTree; As you can see it will take the Day class/object (please correct me on any terms I get wrong). In my Month class, I have a method passing a method function pointer to this method: bool Month::CompareWindSpeed(Day a, Day b) { return ( a.GetData(WIND_SPEED_CODE) < b.GetData(WIND_SPEED_CODE)? true : false); } bool (Month::*myFuncPtr)(Day, Day); myFuncPtr = &Month::CompareWindSpeed; m_windSpeedTree.Insert(dayReading, myFuncPtr); But because I am passing a bool (Day, Day) pointer to a templated class expecting bool (T, T) T being part of this .... template Error 1 error C2664: 'SpecialisedRedBlackTree<T>::Insert' : cannot convert parameter 2 from 'bool (__thiscall Month::* )(Day,Day)' to 'bool (__cdecl *)(T,T)' Any advice?

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  • Can I catch bad pointer errors in C++?

    - by Simon
    Hi there, I was wondering if there is a possibility to catch errors like this in C++: object* p = new object; delete p; delete p; //this would cause an error, can I catch this? Can I check if the pointer is valid? Can I catch some exception? I know I could set the pointer p to NULL after the first object deletion. But just imagine you wouldn't do that. I am using VC++ with Visual Studio 2008/2010. Thank you

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  • VMWare player grabbing mouse focus

    - by Bryan Rowe
    I am using the newest VMWare player on a Windows 7 machine. When I have the player open on one of my two monitors I get some weird behavior. For instance, if the player is open on monitor 2, and I minimize firefox on monitor 1, my mouse will instantly switch to the monitor 2 and be centered within the VMWare player window. This happens when I minimize any window after having been working in my VM. I hope there is a setting or tweak that I am not aware of that can remedy this. EDIT: Through more testing I have found that this only occurs when the VMWare player is full screen on either of my two monitors. Also, I found people having the exact same issue at: http://communities.vmware.com/message/1244913

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